<template>
  <div class="q-pa-md">
    <q-table
      flat bordered
      title="Treats"
      :rows="rows"
      :columns="columns"
      row-key="name"
      v-model:pagination="pagination"
      hide-pagination
    />

    <div class="row justify-center q-mt-md">
      <q-pagination
        v-model="pagination.page"
        color="grey-8"
        :max="pagesNumber"
        size="sm"
      />
    </div>
  </div>
</template>

<script>
import { ref, computed } from 'vue'

const columns = [
  {
    name: 'desc',
    required: true,
    label: 'Dessert (100g serving)',
    align: 'left',
    field: row => row.name,
    format: val => `${val}`,
    sortable: true
  },
  { name: 'calories', align: 'center', label: 'Calories', field: 'calories', sortable: true },
  { name: 'fat', label: 'Fat (g)', field: 'fat', sortable: true },
  { name: 'carbs', label: 'Carbs (g)', field: 'carbs' },
  { name: 'protein', label: 'Protein (g)', field: 'protein' }
]

const rows = [
  {
    name: 'Frozen Yogurt',
    calories: 159,
    fat: 6.0,
    carbs: 24,
    protein: 4.0
  },
  {
    name: 'Ice cream sandwich',
    calories: 237,
    fat: 9.0,
    carbs: 37,
    protein: 4.3
  },
  {
    name: 'Eclair',
    calories: 262,
    fat: 16.0,
    carbs: 23,
    protein: 6.0
  },
  {
    name: 'Cupcake',
    calories: 305,
    fat: 3.7,
    carbs: 67,
    protein: 4.3
  },
  {
    name: 'Gingerbread',
    calories: 356,
    fat: 16.0,
    carbs: 49,
    protein: 3.9
  },
  {
    name: 'Jelly bean',
    calories: 375,
    fat: 0.0,
    carbs: 94,
    protein: 0.0
  },
  {
    name: 'Lollipop',
    calories: 392,
    fat: 0.2,
    carbs: 98,
    protein: 0
  },
  {
    name: 'Honeycomb',
    calories: 408,
    fat: 3.2,
    carbs: 87,
    protein: 6.5
  },
  {
    name: 'Donut',
    calories: 452,
    fat: 25.0,
    carbs: 51,
    protein: 4.9
  },
  {
    name: 'KitKat',
    calories: 518,
    fat: 26.0,
    carbs: 65,
    protein: 7
  }
]

export default {
  setup () {
    const pagination = ref({
      sortBy: 'desc',
      descending: false,
      page: 2,
      rowsPerPage: 3
      // rowsNumber: xx if getting data from a server
    })

    return {
      pagination,
      columns,
      rows,

      pagesNumber: computed(() => Math.ceil(rows.length / pagination.value.rowsPerPage))
    }
  }
}
</script>
